Numerical Simulation and Optimization of Urea-SCR Catalyst for Diesel Engine

Dong Cheng Wang; Min Li

doi:10.4028/www.scientific.net/AMR.724-725.1163

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 724-725Numerical Simulation and Optimization of Urea-SCR...

Numerical Simulation and Optimization of Urea-SCR Catalyst for Diesel Engine

Abstract:

Numerical simulation of certain diesel engine Urea-SCR catalyst is carried out using computational fluid dynamics method. Injection and atomization of Urea solution, evaporation of water and thermolysis of Urea are taken into account, while the surface chemical reaction in the carrier is ignored. Through the study of ammonia concentration distribution index on the inlet cross-section of the carrier, performance of the catalyst under different situations is evaluated and compared, which can provide some guiding suggestion for further optimization, and the different situations are cases with or without a mixer, cases with different injection distances, cases with different nozzle numbers and cases with different nozzle diameters.

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Periodical:

Advanced Materials Research (Volumes 724-725)

Pages:

1163-1170

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.724-725.1163

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Online since:

August 2013

Authors:

Dong Cheng Wang, Min Li

Keywords:

Diesel Engine, Emission Control, Numerical Simulation, Selective Catalytic Reduction (SCR)

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